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Evermint Mcp

evermint-app/evermint-mcp

This is a notary layer for AI agents that need tamper-evident audit trails. It exposes five tools: mint a cryptographically timestamped record of any agent action, verify a single record by ID, list records with filters for agent, action type, and time range, fetch a full record including its original payload, and verify hash-chained sequences to confirm continuity. You'd reach for this when you have multiple agents making decisions or transactions and need proof that records weren't altered after the fact. Records live at evermint.app and can be verified publicly without an API key. The chain verification is especially useful for multi-step workflows where each action references the previous one.

GitHub stars: 1
tools: 5
auth: Secret needed
transport: STDIO
env var: 1
last updated: May 7, 2026

Tools

5 tools

Public tool metadata for what this MCP can expose to an agent.

evermint_mintMint a tamper-evident, cryptographically timestamped record of an action.

Mint a tamper-evident, cryptographically timestamped record of an action.

No parameter schema in public metadata yet.

evermint_verifyVerify a single record by Record ID.

Verify a single record by Record ID.

No parameter schema in public metadata yet.

evermint_list_recordsList records for the authenticated org with optional filters. Returns metadata only (no payloads).

List records for the authenticated org with optional filters. Returns metadata only (no payloads).

No parameter schema in public metadata yet.

evermint_get_recordFetch the full contents of a single record, including its original payload.

Fetch the full contents of a single record, including its original payload.

No parameter schema in public metadata yet.

evermint_verify_chainVerify a sequence of hash-chained records.

Verify a sequence of hash-chained records.

No parameter schema in public metadata yet.

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Configuration

EVERMINT_API_KEY*secret

Your EverMint API key (starts with EVR-sk_). Get one at https://evermint.app/api-keys

Readme

evermint-mcp

Tamper-evident receipts for AI agent actions. The notary layer for agent-to-agent transactions.

Install

npm install -g evermint-mcp

Claude Desktop config

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "evermint": {
      "command": "evermint-mcp",
      "env": {
        "EVERMINT_API_KEY": "EVR-sk_your_key_here"
      }
    }
  }
}

Get an API key at https://evermint.app/api-keys

Add to your Claude desktop config (~/.claude/claude_desktop_config.json):

{
  "mcpServers": {
    "evermint": {
      "command": "npx",
      "args": ["-y", "evermint-mcp"],
      "env": {
        "EVERMINT_API_KEY": "EVR-sk_your_key_here"
      }
    }
  }
}

Restart Claude. The tools appear automatically.

Tools

`evermint_mint` (API key required)

Mint a tamper-evident, cryptographically timestamped record of an action.

evermint_mint({
  agent_id: "billing-agent-1",
  action_type: "decision_made",
  payload: { decision: "approved", confidence: 0.97 }
})

`evermint_verify` (public)

Verify a single record by Record ID.

evermint_verify({ record_id: "EVR-12C5N1A2" })

View the full README on GitHub

Details

Repository: github.com/evermint-app/evermint-mcp
Category: AI & LLM Tools
Package: evermint-mcp
Transport: STDIO
Auth: Required
Registry: MCP registry, active

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